trinomen

plural trinomina

1. biologyA scientific name at the rank of subspecies: an expansion of a binomial name (a genus and a species) combined with the name of the subspecies; for example Anopheles gigas formosus or Homo sapiens sapiens.

   1 more example

   The subspecies (trinomen) is the only infraspecific taxon so recognized by the International Code of Zoological Nomenclature... However, the category of subspecies has not been widely used in entomology, because, in most cases, the level of population differentiation within a species is not clearly determined and subspecies populations are difficult to identify.

   1993 May 10, Ke Chung Kim, Bruce A. McPheron, Evolution of Insect Pests: Patterns of Variation, John Wiley, →ISBN, page 458

   Synonyms: ternary name, three-part name, trinomial name